Search Results: Microsoft365Security

Microsoft 365's overwhelming success as the central hub for business communication and collaboration has transformed it into the most lucrative target for cybercriminals. Just as Windows became the focal point of attacks in previous decades, M365's market dominance creates a massive, interconnected attack surface where compromising one service can unlock access to the entire ecosystem, compounded by critical backup vulnerabilities. Organizations must treat M365 security as a specialized discipline, moving beyond basic configurations to implement robust, layered defenses.

In a major cybersecurity operation, Microsoft and Cloudflare have disrupted the RaccoonO365 phishing service, seizing 338 malicious domains and accounts. The Phishing-as-a-Service platform stole over 5,000 Microsoft 365 credentials, targeting healthcare and corporate networks for ransomware and financial fraud. The alleged operator has been identified, with criminal referrals filed to international authorities.